Just played through Q4 Single Player, but at one point had to use noclip to get through a door that just would not open
This is in map 5, when you return to the "big gun". At the foot of that gun there is a door you need to open. For this you climb up via some crates, to be attacked by a monster coming out of a hole in the sand/ground. Jump into the hole, unlock the door, your team enters and fights one more monster. And that's that... there are two doors in this room and one of them should open. But it stays locked (red light).
WTH is going on?
Is this some really ugly but with the v1.2 patch?
Another thing I found really strange was the collecting of ammo for the Hyperblaster and the Lightning Gun. After "just" picking up the ammo I suddenly actually had the weapon as well.